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INTRODUCTION

This chapter provides all the information you need to use the programmable key feature of the CIT101XL terminal. The keys may be programmed by the operator at the keyboard by using the function key editor or by the host computer with the use of control sequences.

The CIT101XL has 16 programmable function keys, Fl through F16, which can be used to generate 32 functions. Pressing <F1> through <F16>

(unshifted) generates functions F1 through F16; pressing <SHIFT-Fl>

through <SHIFT-F16> generates functions F17 through F32. By using these programmable keys, you can make one function key do the work of many ordinary keys. Repetitive keystrokes, word processing commands, and any other special command can be recorded and then played back by pressing a single function key.

Function keys can be programmed by means of the function key editor in either of the ANSI or ASCII terminal emulation modes. The procedure is the same in both modes. However, the control sequences to program the keys from the host vary depending on the terminal emulation mode.

Included first in this chapter is a description of the function key editor, followed by descriptions of the ANSI and ASCII function key programming sequences.

FUNCTION KEY EDITOR.

Entering the Function Key Editor

To enter the function key editor, first enter the set-up mode by pressing <SHIFT-SETUP>. Once you are in the set-up mode, press the function key you wish to program (keys <Fl> through <F16> for functions Fl through F16 and <SHIFT-Fl> through <SHIFT-F16> for functions F17 through F32). The function key editor will appear as follows:

E!~ L: __________________

04~~

Programmed End of Sequence ^t Available Memory

Key Display Box

The Function Key Editor Screen

The key which is being programmed is shown in the left-most box as KEY:

Fxx, where xx is the current function key number. For example, if you hit the Fl key, KEY: FOl will be displayed.

The center display box contains the key sequence programmed for Fxx.

The cursor marks where typed characters will be inserted. The end of the sequence is marked by an asterisk (*). You can enter more characters than can be displayed in the display box. If the key sequence extends to the right of the display box, a blinking > will appear at the right-most position. If the key sequence extends to the left of the display box, a blinking < will appear in the left-most column.

The right-most box contains the available space left for storing the function key contents. This space can be divided up between any keys in any way. The sole limitation is memory: the sum of the lengths of all the F-Key sequences cannot exceed 4352 characters. If the space is exhausted, the terminal will beep each time you try to enter new data.

Editin, a Function Key Sequence

To edit a function key after entering the editor, simply type the characters you want the F-Key to generate. You are not limited to normal alphanumeric characters: control characters can be entered by typing <CTRL> and the control character. If the cursor is positioned between existing characters, typed characters will be inserted between

(not written over) existing characters. Typing past the end of the display box will cause the display to scroll left.

To move to any position in the sequence, use the right or left arrow keys. If the sequence is larger than the display bOX, moving the cursor to the right or left past the end of the display box will scroll the display left or riqht. To delete the character to the left of the cursor, press the delete key. Characters to the right of the deleted character will be moved one column left.

Function key sequences are saved automatically in nonvolatile memory when you exit the function key editor by pressing <SETUP> or

<SHIFT-SE'l'OP>.

Function Key Editor Commands Keystroke

<F1> to <F16>

<SHIFT-F1> to <SHIFT-F16>

<t> (Up Arrow)

<.j.> (Down Arrow)

<~> (Right Arrow)

Action performed

Edit function keys P1 throuqh F16.

Edit function keys F17 through F32.

Edit previous function key.

Edit next function key.

Move cursor right. Scroll left if end of display is encountered.

Function Key Editor Commands (Continued) Keystroke

<SHIFl'-DELETE>

<CTRL-DELETE>

<SHIFl'-CTRL-DELETE>

<SETUP>

<SHIFl'-SETUP>

Action performed

Delete character under the cursor.

Characters to the right of the cursor are moved left.

Delete entire function key sequence.

Delete characters from cursor to end of sequence.

Exit function key editor to set-up mode.

Function keys are saved in nonvolatile memory.

Exit function key editor to normal operating mode. FUnction keys are saved in nonvolatile memory.

Function Key Label Editor characters overwrite existing characters.

If no labels have been programmed, the function key label fields will be invisible. You will not be able to see where one field ends and another begins. If this is the case, hold down any alphanumeric key (such as

"m") until the function key labels are filled. The function key label fields will be separated by spaces as follows:

mmmmmmmm mmmmmmmm mmmmmmmm

t

THRU mmmmmmmm mmmmmmmm mmmmmmmm

t

If you change the screen width after function key labels have been.

programmed, you may have to delete the function key label line. To do so, press <SHIFT-CTRL-DELETE>.

The following table summarizes the function key label commands:

Keystroke

<SHIFT-SETUP>

<NO SCROLL>

<SHIFT-NO SCROLL>

<~> (Right Arrow)

< .. > (Left Arrow)

<SHIFT-CTRL-DELETE>

<SETUP>

Action performed

Enter/Exit the set-up mode.

Edit the unshifted function key labels.

Edit the shifted function key labels.

Move cursor right.

Move cursor left.

Delete function key labels.

Return to the Set-Up mode.

ANSI PROGRAMMABLE FUNCTION KEY CONTROLS